Q: org.apache.jasper.JasperException: Unable to compile class for JSP
   ....
   root cause
   java.io.FileNotFoundException:
   /usr/share/tomcat/work/Catalina/localhost/bugzero/org/apache/jsp/jsp/login_jsp.java
   (No such file or directory)

A: This error occurs if Tomcat cannot create the folder needed for the jsp java code.
   This can either because the tomcat user does not have the suitable file permission,
   or the particular version of Tomcat or Java are having a problem.

   It have been reported that, Tomcat 5.0.27, J2SE 1.4.2_05 on Debian 3.0 has a problem
   if jsvc is used to launch Tomcat.
   Problem also has been reported for Tomcat 5.0.19 on SUSE 9.1.